Games like Slava Ukraini!

A free single-player action-strategy simulation about defending Ukraine from Russian aggression, mixing simple tactical defense with a patriotic tribute tone; reviewers find it fun, with average playtime around 11-12 hours.

Death From Above: A Ukrainian Drone Warstory
A short, patriotic single-player drone-combat game where you operate a lone Ukrainian UAV to destroy tanks and sabotage Russian forces behind enemy lines, with a simple loop and roughly two hours of median playtime among reviewers.